I'm beginning to wonder...

Alright, so I have read previous threads about misspellings and poor grammar in Audiogon posts, and I have even joked about it myself in one thread a long time ago. In fact, while I was poking fun at a misspelled word in the thread, I misspelled one myself and was called out for it!
What I am beginning to wonder about is what percentage of Audiogon members speak (or write) english as a first language. Almost every day, there is a classified or a post that is nearly unreadable. The strange thing is that the post will be answered by several readers with no mention of the poor writing. It is so common, that I am wondering what pecentage of regular members are living in the USA. Does anyone have an idea?